If the four components were ranked from smallest to largest, what would the order be? *Science*

A: planet, solar system, galaxy, universe

B: planet, galaxy, solar system, universe

C: universe, galaxy, solar system, planet

D: solar system, galaxy, planet, universe

help me :)

2:58

This isn't college! Its science and I'm keeping my grade private so.

If a solution is considered basic, then a) the hydroxide ion and hydronium ion concentrations are equal. b) the hydroxide ion concentration is less than the hydronium ion concentration. c) the hydronium ion concentration is greater than the hydroxide ion concentration. d) the hydroxide ion concentration is greater than the hydronium ion concentration.

Which best explains why an iceberg floats?

Which change in temperature is the smallest? a change of 1 thomson degree a change of 1 kelvin degree a change of 1 fahrenheit degree a change of 1 celsius degree